Crystal Structures and Transition Mechanism of VO2(A)

Oka, Yoshio; Sato, Shôichi; Yao, Takeshi; Yamamoto, Naoichi

doi:10.1006/jssc.1998.8025

Cited by 93 publications

(65 citation statements)

References 5 publications

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“…IR measurements were carried out by a Bruker Vertex 80 V FTIR spectrometer belonging to our self-built system, part of the IR experiments were performed by U2A beamline of Brookhaven National Laboratory. The first-principles calculation on Raman spectra and phonon modes variation were performed on the basis of the density functional theory and pseudopotential methods [34], which are implemented in the CASTEP code.…”

Section: Methodsmentioning

confidence: 99%

Pressure-induced metallization and amorphization inVO2(A)nanorods

Cheng

Zhang

et al. 2016

Phys. Rev. B

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Pressure-induced metallization and amorphization in VO 2 (A) nanorods. Physics, 93(18) nanorods is demonstrated, which provides important physical foundation in experimental understanding of MIT in VO 2 . The observed tetragonal metallic state at ∼28 GPa should be interpreted as a distinct metastable state, while increasing pressure to ∼32 GPa, it transforms into a metallic amorphous state completely. The metallization is due to V 3d orbital electrons delocalization, and the amorphization is attributed to the unique variation of V-O-V bond angle. A metallic amorphous VO 2 state is found under pressure, which is beneficial to explore the phase diagram of VO 2 . Furthermore, this work proves the occurrence of both the metallization and amorphization in octahedrally coordinated materials. Physical Review B. Condensed Matter and Materials

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Section: Methodsmentioning

confidence: 99%

Pressure-induced metallization and amorphization inVO2(A)nanorods

Cheng

Zhang

et al. 2016

Phys. Rev. B

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“…20 Later, the crystal structure and phase transition were thoroughly investigated by Oka. 21,22 More recently, various VO 2 (A) nanostructures have been successfully fabricated. For example, Ji and coworkers selectively prepared VO 2 (A) by controlling the pressure during the hydrothermal synthesis.…”

Section: -16mentioning

confidence: 99%

Synthesis and formation mechanism of VO₂(A) nanoplates with intrinsic peroxidase-like activity

et al. 2015

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Monocrystalline VO 2 (A) nanoplates have been synthesized via a one-pot hydrothermal process. In situ powder X-ray diffraction was used to monitor the hydrothermal synthesis and it was found that VO 2 (A) nucleates and grows directly from solution after the complete hydrolysis of a 2.0 M VO(acac) 2 precursor solution, rather than involving a previously reported intermediate phase VO 2 (B). A hydrating-exfoliatingsplitting mechanism was established to explain the formation of the nanoplate architecture. The synthesized VO 2 (A) nanoplates showed outstanding peroxidase-like activity and hence are a promising candidate for artificial peroxidase.

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“…The methods have been fruitful for vanadium oxide compounds in our studies (8). In the present study, hydrothermal methods have been successfully applied to the La}V4}O system to produce zircon-type LaVO and a new compound LaV O in a single-crystalline form.…”

Section: Introductionmentioning

confidence: 95%